Patents by Inventor Joon-Gu Lee

Joon-Gu Lee has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20120267651
    Abstract: In one aspect, a display device comprising: a lower substrate, a light-emitting element formed on the lower substrate and comprising a plurality of pixels, an upper substrate disposed on the light-emitting element with a gap therebetween sealed with a sealant, a filler filling the gap between the light-emitting element and the upper substrate, and a light-absorbing material formed between the lower substrate and the upper substrate and selectively absorbing light of a certain wavelength range is provided.
    Type: Application
    Filed: November 28, 2011
    Publication date: October 25, 2012
    Applicant: Samsung Mobile Display Co., Ltd
    Inventors: Won-Jong Kim, Joon-Gu Lee, Ji-Young Choung, Jin-Baek Choi, Yeon-Hwa Lee, Young-Woo Song, Jong-Hyuk Lee
  • Publication number: 20120268000
    Abstract: An organic light-emitting display device includes an anode electrode, an organic layer on the anode electrode, the organic layer having an emission layer, and a cathode electrode on the organic layer through which light emitted from the emission layer of the organic layer passes, wherein a thickness of the cathode electrode in a first region is different from a thickness of the cathode electrode in a second region.
    Type: Application
    Filed: October 25, 2011
    Publication date: October 25, 2012
    Inventors: Jin-Baek Choi, Won-Jong Kim, Ji-Young Choung, Joon-Gu Lee, Yeon-Hwa Lee, Young-Woo Song, Jong-Hyuk Lee
  • Publication number: 20120248465
    Abstract: An organic light emitting diode display capable of reducing the shortening of image stacking lifetime caused by the residue of the barrier ribs produced during the forming of the barrier ribs is provided. The display includes: a substrate; a first pixel electrode formed on the substrate; barrier ribs formed on the substrate, and having an opening exposing the first pixel electrode; a second pixel electrode formed on the first pixel electrode; an organic light emitting member formed on the second pixel electrode; an organic light emitting member formed on the second pixel electrode; a common electrode formed on the organic light emitting member; and a thin film encapsulation member covering the common electrode. The width of the second pixel electrode is greater than the exposure width of the first pixel electrode exposed through the opening of the barrier ribs.
    Type: Application
    Filed: July 11, 2011
    Publication date: October 4, 2012
    Inventors: Jin-Baek Choi, Ji-Young Choung, Joon-Gu Lee, Se-Jin Cho, Won-Jong Kim, Hee-Joo Ko, Yeon-Hwa Lee, Young-Woo Song, Jong-Hyuk Lee
  • Publication number: 20120235144
    Abstract: An organic light emitting diode device includes a substrate, a thin film transistor on the substrate, a first pixel electrode electrically connected to the thin film transistor, a pixel defining layer on the first pixel electrode and partitioning a light emitting region, a second pixel electrode contacting the first pixel electrode at the light emitting region, a light emitting layer contacting the second pixel electrode at the light emitting region, and a common electrode on the light emitting layer; and a method of manufacturing the same is provided.
    Type: Application
    Filed: August 10, 2011
    Publication date: September 20, 2012
    Inventors: Ji-Young Choung, Jin-Baek Choi, Joon-Gu Lee, Se-Jin Cho, Hee-Joo Ko, Yeon-Hwa Lee, Won-Jong Kim, Young-Woo Song, Jong-Hyuk Lee
  • Publication number: 20120181544
    Abstract: An organic light-emitting display device includes a substrate; a thin-film transistor on the substrate; a first insulating layer covering the thin-film transistor; a first electrode on the first insulating layer, and electrically connected to the thin-film transistor; a second insulating layer on the first insulating layer so as to cover the first electrode, and having an opening for exposing a part of the first electrode; a porous member in the second insulating layer; a second electrode on the second insulating layer, and facing the first electrode so as to correspond to the opening; and an organic emission layer between the first electrode and the second electrode so as to correspond to the opening. The organic light-emitting display device may prevent degradation of characteristics of an organic light-emitting device due to discharge of gas from an organic material.
    Type: Application
    Filed: September 23, 2011
    Publication date: July 19, 2012
    Inventors: Yeon-Hwa Lee, Won-Jong Kim, Ji-Young Choung, Joon-Gu Lee, Darby Choi, Young-Woo Song, Jong-Hyuk Lee
  • Patent number: 8187482
    Abstract: A flat panel display and a method of manufacturing the same are disclosed. In one embodiment, the manufacturing method includes: i) preparing a substrate, ii) forming a plurality of subpixels on the substrate and iii) forming a light resonating layer including two or more layers on the subpixels, wherein the light resonating layer varies in thickness depending on the subpixels. According to at least one embodiment, it is possible to improve the brightness and the external light coupling efficiency. Further, it is possible to easily manufacture the light resonating layer with the structure in which the low refractive layers alternate with the high refractive layers.
    Type: Grant
    Filed: February 5, 2009
    Date of Patent: May 29, 2012
    Assignee: Samsung Mobile Display Co., Ltd.
    Inventors: Young-Woo Song, Yoon-Chang Kim, Jong-Seok Oh, Sang-Hwan Cho, Ji-Hoon Ahn, Joon-Gu Lee, So-Young Lee, Jae-Heung Ha
  • Patent number: 8125140
    Abstract: An organic light emitting display includes an anode; an organic layer on the anode; and a cathode on the organic layer. The cathode includes a first region and a second region which are sequentially disposed on the organic layer in parallel. The first and second regions are formed by doping a metal oxide on an indium oxide matrix. The doping density of the metal oxide of the first region is greater than that of the second region, the metal oxide of the first region has a density gradient, and the density of the metal oxide in a boundary surface of the first and second regions is the same. An organic light emitting display according to the present invention can increase light emitting efficiency without using a resonance structure.
    Type: Grant
    Filed: August 19, 2009
    Date of Patent: February 28, 2012
    Assignee: Samsung Mobile Display Co., Ltd.
    Inventors: Yong-Tak Kim, Jong-Hyuk Lee, Won-Jong Kim, Joon-Gu Lee, Jin-Baek Choi
  • Patent number: 8120241
    Abstract: A display device includes a substrate, a white light source on the substrate, a dichroic layer between a viewing surface of the display device and the white light source, the dichroic layer being configured to allow light of a predetermined wavelength band to be transmitted therethrough, and a ¼ wavelength layer between the dichroic layer and the white light source.
    Type: Grant
    Filed: March 5, 2008
    Date of Patent: February 21, 2012
    Assignee: Samsung Mobile Display Co., Ltd.
    Inventors: Joon-Gu Lee, Young-Woo Song, Kyu-Hwan Hwang, Jong-Seok Oh, Jae-Heung Ha, Chul-Woo Park, Jong-Hyuk Lee
  • Publication number: 20120007055
    Abstract: An organic light emitting diode device includes a first electrode, a second electrode, and an emission layer disposed between the first and second electrodes. The first electrode includes a first layer and a second layer. The first layer includes ytterbium (Yb), samarium (Sm), lanthanum (La), yttrium (Y), calcium (Ca), strontium (Sr), cesium (Cs), ruthenium (Ru), barium (Ba), or a combination thereof and having a thickness ranging from about 40 to 200 ?. The second layer includes silver (Ag), aluminum (Al), copper (Cu), chromium (Cr), or a combination thereof and having a thickness ranging from about 100 to 250 ?.
    Type: Application
    Filed: December 16, 2010
    Publication date: January 12, 2012
    Applicant: Samsung Mobile Display Co., Ltd.
    Inventors: Yong-Tak KIM, Won-Jong Kim, Ji-Young Choung, Joon-Gu Lee, Jin-Baek Choi, Kyu-Hwan Hwang, Il-Soo Oh, Jong-Hyuk Lee
  • Publication number: 20110121270
    Abstract: An organic light emitting device including a substrate on which an organic light emitting unit is formed, wherein the organic light emitting unit sequentially includes a first electrode, an organic layer, and a second electrode; and a passivation layer covering the substrate and the second electrode, and a method of manufacturing the organic light emitting device.
    Type: Application
    Filed: June 14, 2010
    Publication date: May 26, 2011
    Applicant: SAMSUNG MOBILE DISPLAY CO., LTD.
    Inventors: Yong-Tak KIM, Jong-Hyuk LEE, Won-Jong KIM, Joon-Gu LEE, Jin-Baek CHOI
  • Publication number: 20110121351
    Abstract: An organic light emitting diode (OLED) device and a method of manufacturing the same, the OLED device including a substrate, a first electrode on the substrate, a buffer layer on the first electrode, an emission layer on the buffer layer, and a second electrode on the emission layer, wherein the buffer layer includes a transparent conductive oxide, and a metal or metal oxide having a work function lower than a work function of the transparent conductive oxide.
    Type: Application
    Filed: October 19, 2010
    Publication date: May 26, 2011
    Inventors: Joon-Gu Lee, Jong-Hyuk Lee, Won-Jong Kim, Ji-Young Choung, Kyu-Ilwan Kwang, Yong-Tak Kim, Jin-Baek Choi
  • Patent number: 7947973
    Abstract: An organic light-emitting device, including a substrate, an organic light-emitting element on the substrate, a sealing member on the organic light-emitting element, a ¼ wavelength layer on one surface of the substrate, the organic light-emitting element, or the sealing member, and a linear polarization layer on one surface of the substrate, the organic light-emitting element, the sealing member, or the ¼ wavelength layer, the linear polarization layer being closer to an image display surface than the ¼ wavelength layer.
    Type: Grant
    Filed: March 30, 2007
    Date of Patent: May 24, 2011
    Assignee: Samsung Mobile Display Co., Ltd.
    Inventors: Young-Woo Song, Jong-Hyuk Lee, Won-Jong Kim, Yoon-Hyeung Cho, Joon-Gu Lee, Jae-Heung Ha
  • Patent number: 7911136
    Abstract: A polarizer and an organic light emitting display apparatus including the polarizer. According to an embodiment of the present invention, a polarizer includes a substrate and a plurality of electrode units separated from each other on the substrate and formed in a stripe pattern. Each of the electrode units includes a first surface facing the substrate and a second surface opposite the first surface, the first surface having a width smaller than a width of the second surface.
    Type: Grant
    Filed: February 24, 2010
    Date of Patent: March 22, 2011
    Assignee: Samsung Mobile Display Co., Ltd.
    Inventors: Joon-Gu Lee, Young-Woo Song, Kyu-Hwan Hwang, Jong-Seok Oh, Jae-Heung Ha, Chul-Woo Park, Jong-Hyuk Lee
  • Patent number: 7898167
    Abstract: An electroluminescence (EL) display device with improved external light coupling efficiency and brightness that may be easily manufactured. The EL display device includes: a substrate; a first electrode arranged above the substrate; a second electrode arranged above and substantially parallel to the first electrode; an intermediate layer arranged between the first and second electrodes, and including an emissive layer; a color converting layer arranged between the substrate and the first electrode or above the second electrode; and a light resonance controlling layer arranged between the emissive layer and the color converting layer.
    Type: Grant
    Filed: December 12, 2005
    Date of Patent: March 1, 2011
    Assignee: Samsung Mobile Display Co., Ltd.
    Inventors: Young-Woo Song, Yoon-Chang Kim, Sang-Hwan Cho, Ji-Hoon Ahn, Joon-Gu Lee, So-Young Lee, Jong-Seok Oh, Jae-Heung Ha
  • Publication number: 20100301741
    Abstract: Provided is an organic light emitting device including an anode, a cathode, and a light emitting layer disposed between the anode and the cathode, wherein the cathode has a structure including a first metal layer and a second metal layer, or a structure including a first metal layer, a second metal layer, and one selected from the group consisting of an oxide layer, a nitride layer, and a nitric oxide layer, and wherein the cathode has low resistance.
    Type: Application
    Filed: April 8, 2010
    Publication date: December 2, 2010
    Applicant: Samsung Mobile Display Co., LTD.
    Inventors: Yong-Tak KIM, Won-Jong Kim, Joon-Gu Lee, Jin-Baek Choi, Chang-Ho Lee, Il-Soo Oh, Hee-Ju Ko, Se-Jin Cho, Jin-Young Yun, Hyung-Jun Song, Kyu-Hwan Hwang, Jong-Hyuk Lee
  • Publication number: 20100207149
    Abstract: An organic light emitting diode (OLED) including: a substrate; a reflection layer on the substrate and including metal; a first electrode on the reflection layer and including a light transparent aluminum zinc oxide (AZO); an organic layer on the first electrode and including an emitting layer; and a second electrode on the organic layer and including a semi-permeable reflection layer.
    Type: Application
    Filed: February 8, 2010
    Publication date: August 19, 2010
    Inventors: Won-Jong Kim, Chang-Ho Lee, Jong-Hyuk Lee, Young-Woo Song, Yong-Tak Kim, Jin-Baek Choi, Joon-Gu Lee, Se-Jin Cho, Hee-Joo Ko, Il-Soo Oh, Hye-Lim Lee, Kyu-Hawn Hwang
  • Patent number: 7772768
    Abstract: A polarizer and a flat panel display apparatus including the polarizer are provided. The polarizer includes: a base; and a plurality of grids on the base, the plurality of grids including a first component and a second component, and having a thickness in a thickness direction of the polarizer. The first component includes a dielectric material and the second component includes a metal. The first component and the second component have a concentration gradient in the thickness direction, wherein a concentration of the first component in the grids increases along a thickness direction toward the external light incidence side, and a concentration of the second component in the grids increases along a thickness direction away from the external light incidence side.
    Type: Grant
    Filed: August 10, 2007
    Date of Patent: August 10, 2010
    Assignee: Samsung Mobile Display Co., Ltd.
    Inventors: Jong-Seok Oh, Jong-Hyuk Lee, Young-Woo Song, Kyu-Hwan Hwang, Joon-Gu Lee, Jae-Heung Ha, Chul-Woo Park
  • Publication number: 20100148664
    Abstract: A polarizer and an organic light emitting display apparatus including the polarizer. According to an embodiment of the present invention, a polarizer includes a substrate and a plurality of electrode units separated from each other on the substrate and formed in a stripe pattern. Each of the electrode units includes a first surface facing the substrate and a second surface opposite the first surface, the first surface having a width smaller than a width of the second surface.
    Type: Application
    Filed: February 24, 2010
    Publication date: June 17, 2010
    Inventors: Joon-Gu Lee, Young-Woo Song, Kyu-Hwan Hwang, Jong-Seok Oh, Jae-Heung Ha, Chul-Woo Park, Jong-Hyuk Lee
  • Patent number: 7696687
    Abstract: An organic EL display device, and a manufacturing method thereof, including a rear substrate, and an organic EL portion formed on a surface of the rear substrate. The organic EL portion includes a first electrode, an organic layer, and a second electrode sequentially stacked, and a nano-porous layer and a highly refractive layer are interposed between the rear substrate and the first electrode.
    Type: Grant
    Filed: June 24, 2005
    Date of Patent: April 13, 2010
    Assignee: Samsung Mobile Display Co., Ltd.
    Inventors: Joon-Gu Lee, Yoon-Chang Kim, Young-Woo Song, Sang-Hwan Cho, Ji-Hoon Ahn, Jong-Seok Oh, So-Young Lee
  • Publication number: 20100052523
    Abstract: An organic light emitting diode (OLED) including a first electrode formed on a substrate; an intermediate layer formed on the first electrode and including an organic emission layer; and a second electrode formed on the intermediate layer, wherein at least one from among the first electrode and the second electrode is formed as a transparent electrode including a material selected from the group consisting of MoOx, WOx, YbOx, ReOx, GeOx, and combinations thereof. In this manner, the performance of the transparent electrode is enhanced.
    Type: Application
    Filed: August 17, 2009
    Publication date: March 4, 2010
    Applicant: Samsung Mobile Display Co., Ltd.
    Inventors: Won-Jong KIM, Chang-Ho Lee, Jong-Hyuk Lee, Young-Woo Song, Yong-Tak Kim, Joon-Gu Lee, Jin-Baek Choi, Kyu-Hwan Hwang, Hee-Joo Ko, Il-Soo Oh, Se-Jin Cho, Hye-Lim Lee